baber/WOPTO huggingface dataset:
Patent GB-833010-A (GB)
Title: Improvements in or relating to ignition apparatus for internal combustion engines
IPC: F02P3/01
Filed: 1957-02-05
Abstract: 833,010. Ignition systems. WESELCO Ltd. Feb. 5, 1957 [July 4, 1956], No. 3911/57. Class 7(4) An ignition system for an internal combustion engine comprises a transistor, means for coupling an output circuit of the transistor to an input circuit thereof whereby the transistor is adapted to produce high frequency oscillation, means for inhibiting the production of the oscillation, means comprising an electric impulse generator operating in synchronism with the engine for periodically overriding the inhibiting means, thus rendering the transistor effective to produce the oscillations and means for feeding the oscillations at high voltage to a spark plug for the engine. In Fig. 1 electrical pulses are produced by a rotor 3 which periodically breaks .the magnetic circuit 2. The pulses are fed to a blocked high frequency oscillator 8 which is shown in detail in Fig. 3. The pulses release the oscillation and oscillations are fed to a phase-shifting network 9 and amplifier 10 and thus to the sparking plugs by way of a transformer 11, 12. The network 9 alters the phase of the oscillations as a function of the pulse recurrence frequency. Thus an ignition advance will be obtained which is proportional to the engine speed. As shown, Fig. 3, the oscillator 8 and the amplifier 10 comprise a PNP junction transistor The reference 20 indicates a resistor or thermistor. Fig. 4 shows a modified oscillator and the amplifier is dispensed with in this embodiment. In a modification of Fig. 1 pulses are supplied to the oscillator 8 by way of a filter or equalizer. The filter or equalizer is employed to compensate for the variations in the induced voltage of the pulses as a function of the velocity of rotation of the magnetic rotor i.e. of the engine speed. Tetrode transistors may be substituted for the conventional junction transistors shown.
Patent GB-100188-A (GB)
Title: Improvements in or relating to Wax Thread Sewing Machines.
IPC: D05B67/00
Filed: 1916-03-17
Abstract: 100,188. United Shoe Machinery Co., (Assignees of Seely, T. H.). March 18, 1915, [Convention date]. Sewing-machines; waxing threads. - Interchangeable devices for conveying heat to a thread-controlling member are constructed for the use of different heating-media and formed to fit alternatively at the same point of the machine. The heating-device is adapted to bear on the machine part with a continuous yielding pressure. As applied to a machine of the type described in Specifica- 17328/08, the heating- device comprises a block 48, Fig. 4, held in guides on an extension 48<a> of the machine and provided with a concave surface 66 held yieldingly in contact with the hub 44 of the looper lever by means of a spring 70 housed in the recess 68 and bearing on the end of a pin 72 secured to the plate 48<a> by a screw 76. Similarly-shaped blocks adapted for steam or electric heating are provided, and can be interchanged.
Patent GB-435856-A (GB)
Title: Improvement in pile carpets and rugs and method of manufacturing same
IPC: D05C15/00
Filed: 1934-02-07
Abstract: 435,856. Pile fabrics &c. LAMBERT, J. G., 34, De Montfort Street, Leicester, and BRINTONS, Ltd., 1, Exchange Street, Kidderminster, Worcestershire. Feb. 7, 1934, No. 3974. [Class 142 (iv)] Pile carpets and rugs are made by inserting through perforations in an elastic foundation, such as rubber a reinforced by fabric a<1>, the doubled ends e<1> of folded lengths of tuft yarns e, then applying a layer or coating of rubber or rubber solution f and vulcanizing this to the foundation rubber preferably under pressure. A final backing of textile material g may be applied. The foundation a drawn over a breast rail m, perforated at m<1>, may be perforated by piercing needles b. Yarns c from a carrier h or from a series of jacquard controlled carriers are withdrawn by gripper extractors p, cut off by a cutter o laid over the perforations in the foundation a, and doubled and forced through these perforations and the perforations m by punches d, which may be carried by the same frame &c. as the needles b. Means for operating the grippers are described. A laying comb a helps to locate the cut-off tufts. It may be pivoted at s<2> to facilitate introduction of the foundation to the take up roll. The rail m, the comb s and cam plates p<6> for causing the grippers to dip may be adjustable in distance from the cutter o. After withdrawal of the punches, the planted tufts are gripped and held by the contraction of the elastic foundation. Specification 15680/90, [Class 142], is referred to in the Provisional Specification, which states that the base may be of rubber treated fabric and the backing sheet of hemp fabric or rubber, and that the carpet may be sheared.
Patent GB-564903-A (GB)
Title: Improvements in and relating to inking mechanism for printing presses
IPC: B41F31/30
Filed: 1943-03-11
Abstract: 564,903. Inking apparatus. TRIGGS, W. W. (Harris-Seybold-Potter Co.). March 11, 1943, No. 3994. [Class 100 (ii)] In a lithographic printing-machine in which ink is transferred to the plate cylinder from two distributing drums, supplied from a single fountain, the ink is supplied to at least one of the drums by two rollers in contact with the drum, and ink is supplied to the rollers from the fountain so that each roller receives ink independently of the other. By this arrangement water transferred by the forme-inking rollers to the drum passes from the drum towards the fountain mainly by a path through one of the rollers separate from that by which ink is supplied to the drum by the other roller. As shown in Fig. 1, two pairs of forme-inking rollers 28, 29 and 30, 31 contact drums 26, 27, each of which is supplied with ink from a main distributing drum 25 through a pair of rollers 70, 90, and 71, 91. The plate cylinder 11 and drums 25, 26, 27 rotate in anti - clockwise direction. Water from the printing plate, which is supplied from an ordinary damping apparatus 15, is chiefly picked up by the roller 28 and is passed on towards the fountain 20 mainly by the drum 26 and roller 70, while ink substantially free from water is supplied to the plate cylinder from the drum 25 by the roller 90, drum 26 and roller 29. Similarly, the roller 91 passes on water picked up by the roller 30, while ink is supplied to the roller 31 by the roller 71 and drum 27. The arrangement results in a more uniform distribution of ink on the plate cylinder. The rollers 28 ... 31, drums 26, 27 and rollers 70, 90, 71, 91 are mounted in side plates 130 adjustable by screws 46 and operable to lift the forme-inking rollers clear of the forme by eccentric pins 49 connected for simultaneous movement by arms 50 and link 51 and actuated by a shaft 56 through arm 55 and link 53. The bearings 128 of the drums 26, 27 are secured on guides 129 on the plates 130 against stop screws 131 by clamping screws 32. Rollers 90, 91 are mounted in open bearings 92, the shanks of which are mounted in brackets 95, 96 pivoted on a shaft 119 and having depending parts 100, 103 pressed apart by a spring 106 to hold the rollers in contact with the drum 25. The shanks of the bearings 92 are pressed radially outwards by springs 97. In modifications, the single rollers 70 and 71 are replaced by trains of three and five rollers.
Patent GB-298836-A (GB)
Title: Improvements in machines for removing flexible cores from rubber articles such as tire covers
IPC: B29D30/54
Filed: 1928-02-08
Abstract: 298,836. Ellis, G. B., (Goodyear Tire & Rubber Co.). Feb. 8, 1928. Tyre covers, stripping from cores.-A machine for stripping a tyre cover from an inflatable core. stated to be applicable to the corresponding manipulation of other rubberized articles, comprises a movable member having fingers adapted to engage the edges of the cover to expose the core, and a reciprocating hook-shaped member adapted to remove the core from the tyre. In the apparatus shown, the means for spreading the edges of the cover comprise a pair of arms 74, 75 with hooked ends 78, 79 carried by the piston-rod 68 of a power-cylinder 63. The arms 74, 75 carry rollers 94, 95 which engage divergent cam surfaces 102, 103 in the upward movement of the arms when pressure-fluid is admitted to the lower end of the cylinder 63. The supply of compressed air to the cylinder 63 is controlled by a hand-operated cock and a rotary valve 147 having through-ports 148, 149 adapted to place the upper end of the cylinder in communication with the supply, or with the atmosphere. The valve 147 is turned twice through 90‹ during each revolution of the shaft 17 by the engagement of arms 139, 140 on the shaft with a tappet-member 153 on the valve. In the upward stroke, the edges of the tyre 53 are raised and spread away from the core 52. The latter is thus exposed for engagement by the hooked end 35 of an arm 33 pivoted on a slide 24 which is reciprocated from a crank-shaft 17 and motor 14. At the end of the forward movement of the slide, a cam 44 on the arm 33 abuts a stop 45 on the framing, causing the hook 35 to be rocked under the core. At the same time a lug 39 on the upper end of the arm 33 is caught by a trip-arm 42 to hold the hook 35 in engagement with the core. On the return movement of the slide 24, the core is carried by the arm 33 until the latter passes between a pair of fixed arms 54 by which the core is removed. Towards the end of this return movement, the other end of the trip-arm 42 engages a fixed projection 47 to release the hook 33, which is swung back to its normal position, Fig. 1, by means of a spring 48. The rotation of the shaft 17 from the motor 14 is controlled by a circuit including electro-magnetic switches for actuating a clutch and brake. By means of cut-outs controlled by cams on the shaft 17, the latter is automatically stopped after each revolution.
Patent GB-338450-A (GB)
Title: Improvements in and relating to doors of horizontal ovens for the production of gas, coke and the like
IPC: C10B25/16
Filed: 1930-02-06
Abstract: 338,450. Wolff, E. Oct. 9, 1929, [Convention date]. Addition to 314,281. Coke-oven doors.-In the coke-oven door described in the parent Specification, the resilient web is clamped to the frame plate by screws. The web 20, which connects the frame plate 14 with a sealing rim 23, rests upon an asbestos strip 21 and is pressed against a flange 34 by screws 31 passing through lugs 30 and bearing on blocks 33.
Patent GB-986176-A (GB)
Title: Improvements in apparatus and method for the vacuum-drying of leather
IPC: C14B1/26
Filed: 1963-01-31
Abstract: <PICT:0986176/C6-C7/1> <PICT:0986176/C6-C7/2> Leather to be dried is placed on a table 1, Fig. 2, heated by fluid from a duct 3, the resultant vapour being exhausted through an upper cover 5 movable by pneumatically operated levers 7, 71 into and from sealing contact with the table and connected to source of vacuum.  The cover comprises a hood 16, Fig. 8, and a frame 15 to which is secured an upper impervious sheet 17, a lower porous sheet 19 and an intermediate metallic mesh spacer 20 which form both a flexible pad 18 in contact with the leather and also a vacuum chamber between the sheet 17, table 1 and sealing strips 22 secured to the base of the frame 15.  The chamber is connected both by suction ducts in the sheet 17 and a manifold 24, and also by suction ducts 230 at the periphery of the pad 18 to a curved neck 25 sealed with rings 26, 127 to a conduit by which it is connected to a vacuum pump through a steam condenser 28, an interception valve and a vacuum accumulator
Patent GB-873947-A (GB)
Title: Improvements relating to resilient support means for the cutter table of combined harvesters
IPC: A01D41/14
Filed: 1960-02-05
Abstract: 873,947. Combine-harvesters. BOLINDESMUNKTELL A.B. Feb. 5, 1960 [March 31, 1959], No. 4208/60. Class 6(3). A supporting arrangement for the header 2 of a combine harvester comprises a bellcrank 12 pivoted on the harvester frame 1 and having one arm connected to the header and the other to the frame via tension springs 15, 18, the arrangement being characterised in that the springs are side-by-side but are connected in series by a pivoted lever 16 at their conjoined ends, the spring tension being transferred from one spring 15 to the other 18 by the lever 16 and thence to the frame through a fixed anchorage 19. The connection to the header comprises a hydraulic ram 13 by which the header can be raised. The frame 1 includes a rigid triangulated subframe 4, 5, 6 carrying the ground-wheels 7 and a bracket 11 on which the bell-crank 12 is mounted. Several springs can be mounted in series, their alternate ends being interconnected by pivoted levers. The anchorage 19 is adjustable to vary the initial spring tension.
Patent GB-256655-A (GB)
Title: Automatic machine for casting metals under pressure
IPC: B22D17/04
Filed: 1925-02-16
Abstract: 256,655. Rogers, F. H., (Eckert Pracisionsgur Fabrik, Geb.). Feb. 16, 1925. Casting-machines; moulds. - Relates to diecasting machines, in which the movements of the mould are automatically controlled by a single cam and consists in forming the cam of symmetrical shape so as to actuate a sliding plate carrying the mould parts by means of an oscillatable fork having rollers adapted to engage the cam at opposite ends of a diameter. The moulded halves 15a, 15<b> slide in brackets 11, 12 on a carriage 10 which is reciprocated by a cam 19, two-armed lever 21, and connecting-rod 27. As the mould is moved towards the nozzle 6, the halves are closed by levers 38, rods 35, and levers 31 pivoted in the carriage and connected to fixed brackets 16 by rods 33. The mould half 15<a> is composed of segments which are brought together, in known manner, bv a lever 57, Fig. 7, which is engaged by a slot 58 in a disc 59 adjustably carried on the brackets 11, 12. When the closing movement is completed the plunger 53 of the metal pump is released by a cam 47 and rapidly forced down by a spring 51 to charge the mould. The cams 47, 19 then return the parts to their original position, the casting being automatically ejected.
Patent GB-667324-A (GB)
Title: Improvements in neckties and method of making same
IPC: A41D25/00
Filed: 1950-02-20
Abstract: 667,324. Neckties. KAPLAN, J. J. Feb. 20, 1950, No. 4285/50. Class 141. A necktie having a wide end A, a narrow end B and a neckband portion C of uniform width and extending from the midpoint O towards the narrow end, is provided with an index element J in the neckband portion indicating the point to be placed in contact with the back buttonhole of the collar before the tie is knotted. A further index element I may be provided on the wide end to indicate where the point M of the narrow end should reach before tying. Specification 576,285 is referred to.
Patent GB-575224-A (GB)
Title: Improvements in locking and fastening devices
IPC: F16B21/10
Filed: 1944-03-08
Abstract: 575,224. Stud - and - socket fastenings. HITCHINS, W. G. March 8, 1944, No. 4312. [Class 44] A stud-and-socket fastening which allows limited latitude as regards the extent to which the stud must be inserted in the socket comprises an inclined pocket in the socket, or, as shown at 3, in the stud 1, the socket housing a ball 4 loaded by spring 6, the mouth of the pocket being restricted so that the ball normally projects therefrom but cannot escape when the stud is removed from the socket. The ball co-operates with the inclined surface of the pocket to allow free insertion of stud in socket to the desired extent, but prevent removal of the stud by wedging action. Release is effected by rotating the stud to register the ball with a longitudinal groove 5, the stud being then freely removable from the socket. In addition to being inclined to the axis, the pocket may be inclined in a helical sense as seen in Fig. 2, the ball then acting to prevent rotation of the stud in one direction but allow free rotation in the other direction. The fastening is applicable generally but is shown as for securing together two apertured plate members, the stud with countersunk head having screwdriver slot .7 being rotatably mounted in one plate, the socket 2 being secured to the other plate. An ejector spring, not shown, may be provided under the head of the stud, and the head may have an arrow or other mark to register with a mark on the plate to indicate the condition of the fastening.
Patent GB-802000-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B1/08
Filed: 1957-02-08
Abstract: 802,000. Centrifugal separators. DE LAVAL SEPARATOR CO. Feb. 8, 1957 [Feb. 8, 1956], No. 4395/57. Class 23 The drive spindle 18 of a bowl 10 has a central passage 25 for the supply of liquid to be purified to the bowl and a concentric passage 27 for the supply of auxiliary liquid to the peripheral regions of the bowl. The liquid to be purified leaves the passage 25 through openings 19a, flows through the interior of a conical member 14, and passes through openings 14c into the bowl. The auxiliary liquid leaves the passage 27 through ducts 41, passes between the member 14 and the bowl bottom 15, and flows around the outer edge of the lowermost plate of the liner 13. The member 14 rests on a boss 16 on the bowl bottom, and has wings 14d, 42 which accelerate the incoming liquids. A post 14b extends upwardly from the conical member through the central holes of the liner, clearance between the liner and the post permitting purified liquid to flow to openings 45 for discharge through channel 44 and outlet 52. The impurities and auxiliary liquid are discharged through channel 48 and outlet 53. The inlets and the outlets are hermetically sealed to the spindle and the bowl respectively by spring loaded rubbing rings. Specificathion 778,503 is referred to.
Patent GB-248357-A (GB)
Title: Improvements in pulverising mills
IPC: B02C13/26
Filed: 1926-02-16
Abstract: 248,357. Raymond Bros. Impact Pulverizer Co., (Assignees of Critts, J., and Vogel, TV. H.). March 2, 1925, [Convention date]. Impact pulverizers. - A ring 31, adjustable from outside the pulverizing mill in a direction along the main shaft 4 relatively to a rotary regulator 27, is provided to control the size of the outlet from the beater chamber 2 to the fan chamber 3 of an impact pulverizer to regulate the fineness of the pulverized material. The means shown for adjusting the ring 31 comprise screws 38, mounted in lugs on the main casing bearing against a lug 37 on the ring 3 to turn the ring. This movement is transformed into motion along the shaft by fixed projections or bolts 35 on the main casing riding in inclined slots 34 in the periphery of the ring 31.
Patent GB-1091071-A (GB)
Title: Improvements in and relating to bearing bushes
Inventor: GRAFF RICHARD
IPC: F16C33/20
Filed: 1964-02-03
Abstract: 1,091,071. Bearings. RUBBER PLASTICS Ltd. Jan. 27, 1965 [Feb. 3, 1964], No. 4449/64. Heading F2A.  A bearing bush is made of polyurethane and is shaped at one, or each, end to form a peripheral seal against a shaft etc. In an embodiment, a bush 6, Fig. 2, has at one or both ends an outer bead 8 and an internal chamfer 7 so that, when the bush is mounted in a housing, an edge 9 forms a sealing lip edge. If the bush has only one end provided with a seal, the other end may be chamfered at 10, 11 to facilitate easy mounting thereof.
Patent GB-297633-A (GB)
Title: Improvements in sparking plugs
IPC: H01T13/34
Filed: 1928-02-13
Abstract: 297,633. Soc. Francaise des Bougies Pognon M. Pognon et Cie. Dec. 13, 1927, [Convention date]. Sparking-plugs. - Powdered packing material L, such as quartz, is placed between the conductor E and insulating member B, which is internally flanged at its lower end to retain the powder L. The space above this packing and above and around the member B is also filled with powdered insulating material M, such as glass. These packings are compressed by the gland P acting through the insulator c the pressure at the same time forcing the end of the rod E into a socket o in the rod D. Metallic washers H, K are placed beneath conical seatings on the two insulators, and on their lower surfaces engage and are penetrated by the sharp edges of shoulders on the casing.
Patent GB-949565-A (GB)
Title: Pocket or like knife
IPC: B26B1/02
Filed: 1960-02-09
Abstract: 949,565. Pocket knives. W. G. IBBERSON, [trading as GEORGE IBBERSON & CO]. Feb. 8, 1961 [Feb. 9, 1960], No. 4568/60. Heading B4B. A pocket knife comprises a blade 12 pivoted by its tang 14 between handle scales 11 to which a back spring 18 is secured by a rivet 19, the ends of the scales being profiled at 20, 21 to the shape of the end of the tang and the adjacent end of the back spring, exposed in the closed position of the blade, and being flush therewith. The centres of curvature of convexly rounded ends of the tang and of the part 20 at the end of the scale may be co-incident with the pivot-pin 16. In a single-bladed clasp knife, shown in Fig. 7, the end of the back spring remote from the pivot has a shaped extension, the scales at that end of the knife being similarly profiled.
Patent GB-580372-A (GB)
Title: Improvements in casement windows
IPC: E06B3/52
Filed: 1944-03-13
Abstract: 580,372. Casement windows. WHITE, B. H. V. March 13, 1944, No. 4590. [Class 20 (iii)] In a window, a roller hinge is axially mounted in bearings in the top and bottom fixed frame members so that the window may be raised and swung inwardly over the sill, such vertical movement being permitted by a gap between the upper window member and the top fixed frame member which gap is closeable by an external hinged flap, together with a baffle movably mounted on the vertical fixed frame member opposite to the hinge so as normally to be engaged by the free edge of the window when shut but to be movable to one side to allow this edge to pass when the window is to be swung inwardly. As shown a casement window C has a roller hinge B arranged so that the sash may be lifted to clear the sill G and allow the window to swing into the room. A baffle plate F normally prevents the free edge of the window from swinging into the room but this baffle may be moved laterally by means of a handle H operating a rack and pinion E to allow this to take place. A space left between the top of the sash and the tubular metal frame A, to allow the sash to be raised, is covered by a hinged flap which opens when the window is opened outwards.
Patent GB-156825-A (GB)
Title: Improvements in skates, especially intended for use upon ice
IPC: A63C1/30
Filed: 1919-02-25
Abstract: 156,825. Laiter, F. Feb. 25, 1919. No Patent granted (Sealing fee not paid). Skates.-A skate blade a, Fig. 1, is divided longitudinally at d, so as to produce two edges a<1>, some distance apart. In a modification a plate b, Fig. 3, is bent to the form shown.